Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 339e7532 authored by Lee, Chun-Yi's avatar Lee, Chun-Yi Committed by Matthew Garrett
Browse files

msi-laptop: Add i8042 filter to sync sw state with BIOS when function key pressed 



There have some MSI netbook change devices state by EC when user press
wlan/bluetooth/wwan function keys. So, add a i8042 filter to sync sw
state with BIOS when function keys pressed.

Signed-off-by: default avatarLee, Chun-Yi <jlee@novell.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 3bb97021

drivers/platform/x86/msi-laptop.c

+58 −1
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ 
#include <linux/backlight.h>

#include <linux/platform_device.h>

#include <linux/rfkill.h>

#include <linux/i8042.h>



#define MSI_DRIVER_VERSION "0.5"
@@ -581,6 +582,46 @@ static void rfkill_cleanup(void) 
	}

}



static void msi_update_rfkill(struct work_struct *ignored)

{

	get_wireless_state_ec_standard();



	if (rfk_wlan)

		rfkill_set_sw_state(rfk_wlan, !wlan_s);

	if (rfk_bluetooth)

		rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);

	if (rfk_threeg)

		rfkill_set_sw_state(rfk_threeg, !threeg_s);

}

static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);



static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,

				struct serio *port)

{

	static bool extended;



	if (str & 0x20)

		return false;



	/* 0x54 wwan, 0x62 bluetooth, 0x76 wlan*/

	if (unlikely(data == 0xe0)) {

		extended = true;

		return false;

	} else if (unlikely(extended)) {

		switch (data) {

		case 0x54:

		case 0x62:

		case 0x76:

			schedule_delayed_work(&msi_rfkill_work,

				round_jiffies_relative(0.5 * HZ));

			break;

		}

		extended = false;

	}



	return false;

}



static void msi_init_rfkill(struct work_struct *ignored)

{

	if (rfk_wlan) {
@@ -706,9 +747,24 @@ static int load_scm_model_init(struct platform_device *sdev) 
	/* initial rfkill */

	result = rfkill_init(sdev);

	if (result < 0)

		return result;

		goto fail_rfkill;



	result = i8042_install_filter(msi_laptop_i8042_filter);

	if (result) {

		printk(KERN_ERR

			"msi-laptop: Unable to install key filter\n");

		goto fail_filter;

	}



	return 0;



fail_filter:

	rfkill_cleanup();



fail_rfkill:



	return result;



}



static int __init msi_init(void)
@@ -819,6 +875,7 @@ static void __exit msi_cleanup(void) 
	platform_driver_unregister(&msipf_driver);

	backlight_device_unregister(msibl_device);



	i8042_remove_filter(msi_laptop_i8042_filter);

	rfkill_cleanup();



	/* Enable automatic brightness control again */